Update CI to use pixi 0.63.2

Author: analog-cbarber

.github/workflows/main.yml

@@ -14,7 +14,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: prefix-dev/setup-pixi@28eb668aafebd9dede9d97c4ba1cd9989a4d0004 # v0.9.2
       with:
-        pixi-version: v0.59.0
+        pixi-version: v0.63.2
         cache: true
         auth-host: prefix.dev
         auth-token: ${{ secrets.PREFIX_DEV_TOKEN }}